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CVE-2020-16873— Xamarin.Forms Spoofing Vulnerability

Quick assessment

Affected
Microsoft xamarin.forms
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows是美国微软（Microsoft）公司发布的一系列操作系统。 Microsoft Xamarin.Forms存在安全漏洞。该漏洞源于Android WebView 83.0.4103.106之前版本的默认设置，该漏洞允许攻击者在目标系统上执行任意Javascript 代码。

CVSS 4.7 · Medium EPSS 3.97% · P90
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I. Basic Information for CVE-2020-16873

Vulnerability Information
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Vulnerability Title
Xamarin.Forms Spoofing Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
<p>A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system.</p> <p>For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms.</p> <p>The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.</p>
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Xamarin.Forms 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司发布的一系列操作系统。 Microsoft Xamarin.Forms存在安全漏洞。该漏洞源于Android WebView 83.0.4103.106之前版本的默认设置，该漏洞允许攻击者在目标系统上执行任意Javascript 代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft xamarin.forms 83.0.0 ~ publication cpe:2.3:a:microsoft:xamarin.forms:-:*:*:*:*:*:*:*

II. Public POCs for CVE-2020-16873

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III. Intelligence Information for CVE-2020-16873

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Vendor Advisories for CVE-2020-16873 (1)

Same Patch Batch · Microsoft · 2020-09-11 · 129 CVEs total

CVE-2020-1595 9.9 CRITICAL Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-1210 9.9 CRITICAL Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-1523 8.9 HIGH Microsoft SharePoint Server Tampering Vulnerability
CVE-2020-0718 8.8 HIGH Active Directory Remote Code Execution Vulnerability
CVE-2020-0761 8.8 HIGH Active Directory Remote Code Execution Vulnerability
CVE-2020-1129 8.8 HIGH Microsoft Windows Codecs Library Remote Code Execution Vulnerability
CVE-2020-1012 8.8 HIGH WinINet API Elevation of Privilege Vulnerability
CVE-2020-0922 8.8 HIGH Microsoft COM for Windows Remote Code Execution Vulnerability
CVE-2020-1453 8.6 HIGH Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-1200 8.6 HIGH Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-1452 8.6 HIGH Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-1460 8.6 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2020-1576 8.5 HIGH Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2020-16875 8.4 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2020-1285 8.4 HIGH GDI+ Remote Code Execution Vulnerability
CVE-2020-1507 7.9 HIGH Microsoft COM for Windows Elevation of Privilege Vulnerability
CVE-2020-1039 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2020-1074 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2020-1115 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2020-1053 7.8 HIGH DirectX Elevation of Privilege Vulnerability

Showing top 20 of 129 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Microsoft

V. Comments for CVE-2020-16873

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